Valve lifter



R. l. SHIBIYA.

VALVE LIFTER.

FILED JULY 9. 19.21.

Arme/VHS handle portion 10.

nlltalented 2id,

RUBEN I. SHIBIYA, OF GMAHA, NEBRASKA.` l

VALVE LTETEE.

appncation aied'auiy e,

subject of the Emperor o? Japan, and aresident oi' @in aha, in thecountyY oi? Douglas and lState of Nebraska, have invented a new andTmproved Valve Lifter, of which the following is a full, clear, andexact description.

This invention relates to a valve lifting device, and has for an objectthe provision or' a simple, compact, strong, efficient tool wherebyvalve springs may be lifted and held in an elevated position while thestems of the valves, to which they are usually connected. are beingremoved, together with the Valves, 'for purposes of repair.

Anotherobject resides in the provision of means whereby after the toolhas been operated to lift the valve the handles can be left in place andare looked in their opera-l tive position while the mechanic is removingY to effect the locking of the tool in its opera-l tive position;

Figure 3 is a plan view of the tool; Figure 4 is an enlarged detail viewshowing the locking means; and

Figure 5 is a section taken on the line 5 5 of Figure 4:.

The preferred Jform of my invention, as shown in the drawings, comprisesa pair-ot liaws 1 and 2, the lower jaw 2 adapted to bear on the frame ofthe engine adjacent the lower end of the valve stem, and the jaw 1adapted to be inserted beneath the collar 3 which is disposed at thelower end oi2 the valve spring 4;. The jaw 2 extends rearwardly in theform of a bar 5 having a handle portion 6 on its rear end. The jaw 1extends rearwardly in the form of a bar 7 which is pivoted at 8 to thebar 5Q Fivoted also at 8 is an operating lever 9 having a A link 11 ispivotally i921. serial no. 483,620.

connected at 12 to the bar 9 and pivotally connected at 13 to the bar 7.

The bar or lever 9 is preferably made and is shown in the form of achannel bar having its channel facing downwardly and within which isdisposed a. cam or tapered 'wedge le. This wedge is connected by a linkor rod to a manually operated lever 15. This lever is held in theposition shown n Fig. Q by means of a spring 17 connected at one end tothe lever 16 and at the other end to the pin 1S on which the lever 16 ispivoted. This wedge 14 is adapted when moved 'forward by the operationof lever 16 to engage with the upper end of a channel sleeve 19 pivotedon the pin or detent 20.

This pin 20 entends between the channelled walls ot the bar or lever 9and acts as a detent or means engaged by the latching lever or arm 21.

As shown in Fig. 2, a locking lever or arm 21 is pivoted at .22 within`the channel of `the bar 5 and is provided along its upper edge `with aplurality oit' teeth, such as 23. These teeth are properlyv designed andintended to engage with the pin 20. The arm 21 normally tends to be heldagainst or moved toward the pin'QO by means of the spring 24 one end ofwhich is connected to the lever 9 and the other end of which isconnected to the arm 21.

`When the handle members 10 and 6 are open, the pin 2O is engaged withone of the upper of the set of teeth 23 to prevent these handle membersfrom being further separated. In the operation of the device, however,after the jaws 1 and 2 have been inserted in the position abovementioned, the handle portions 6 and 10 are moved together, and as thisaction takes place, the pin 20 rides down over the teeth 23; and whenthe handle members are in their lowest position, as shown in Fig. 2, thepin 20 is disposed beneath the lowest tooth on the arm 21. The spring 24holds the arm 21 over so that the engagement of the teeth with the pinwill prevent the separation of the handles 6 and 10. This locking actionwill permit the mechanic to takehis hands oil' the handle portions 6 and10 and remove the valve stem 25 together with. the valve connectedthereto while the tool is holding the spring l in its elevated position.

When the valve or'the stem or both have been repaired and have beenreplaced and the small pin 26 reinserted in the stem 25, then 4it isnecessary to lower the .spring li. This is effected vby pulling on thelever i6, which causes the Wedge le to move Ydovvn to the position shownin Fig. l.V This forward movement of the Wedge'll: causes the movementof the sleeve 19, Which forces `A`the arm 2l and its teeth :23 away fromthe pinl 2O against the action oi' theilspringe. This disengagement ofthe teeth from the pin Apermits the elevationor separation of thehandles 6 and '10 whereby the jaws.y can be movedrftogether and `permitthe lowering of the spring Ll r'with its collar 3 against the pin 26.- c

"What Il claimis:

.1. A valve lifting device comprising a pair of `handlebars adapted tobe moved relative toeac-hfotheiga'pin on one of said handlebarm apivoted latch memberon the otlieryliandle portion, a plurality of teethon -said'latchfmembeig -means for holding said 'latch vmember' and teethin enolao'ement with the pin,the-shapev oilI Athe teeth `permitting-Hmoven'ient of `the pin Withmrespect to the latching'mem'ber in onedirection to prevent pivoted' sleeve :to disengage the latching member,from-the .pin Aand permit 4the rela- ,ftiveimovementoflthe handleportions in the opposite direction.

, 2. A valve lifting device comprising a relative to each other, a pinon one of said handle bars, a pivoted latch member on the otherhandleportion, a plurality or teeth on said latch member, means forholding said Y latch ,member and teeth in engagement With the pin, theshape of the teeth permitting movement of the pin with .respect to theladapted Whenmoved to engage the pivoted ,.-Sleeveto release the latchmgmember from the pin, and a manually operated connec- V tion Ato saidcam.

3. A valve lifting device including a pair of handle bars adapted to bemoved relatively to eachother, a pinion one of said bars, a pivotedlatch member on the other of saidbars, a plurality of teeth on saidlatchmember, means ic-r holding said latch member Vand teeth. infeng'ageinentwith the pin', the sliape of `the teeth permitting. the movement oit thepin with respect to the .latch member in one directionlonly to prefvent.the movement of the pin `with respect tothe teeth in the oppositedirection, a movable member disposed .adjacent the latch member to moveit away from the pin, and

.a manuallyoperated Wedge to engage the movable member vvhen actuated inone direction and move the member, whereby it disengages the latchmember from the pin and permits the yrelative movement of the handleportion in the opposite direction.

f .paire-f ,handle barsadapted to be movedvr`v ROBIN l. Sl-IIBIYA.

